serve your time

serve (one's) time

To spend the amount of time in jail as required by one's prison sentence. After serving his time, the assailant will be deported back to his home country. There's no need to harass him; he served his time and paid his debt to society.
See also: serve, time

serve your time

1 hold office for the normal period. 2 spend time in office, an apprenticeship, or prison.
See also: serve, time